FIG. 6.

Fluid perfusion experiment for testing the second 3D printed perfusion fluidic device with the embedded 1.2 μm pore size cellular acetate membrane separating the top and the bottom circular chambers, and the integrated top and bottom 15 mm diameter no. 1 circular glass cover slips depicted in Fig. 5(c). (a) Top and (b) bottom views of the device after water were pipetted inside the top and the bottom circular chambers. (c) Top and (d) bottom views of the device after a blue colored food dye solution was pipetted inside the bottom circular chamber. The blue colored food dye solution was gradually diffusing through the cellular acetate membrane and into the top circular chamber from the bottom circular chamber.